nijū rasen
1. double helix (structure of DNA)
Noun
#204507
1. double helix (structure of DNA)
1. year
2. counter for years (e.g. of an era), grades (e.g. school)
3. period of an apprentice's contract (usu. ten years)
1. twenty; 20
1. for; for the sake of
2. because of; as a result of
1. Japan
1. obligation; duty
1. together (with)
2. at the same time
3. in one lump; in the same category